Company Filing History:
Years Active: 1999-2002
Title: Innovations by Douglas J Dudgeon
Introduction
Douglas J Dudgeon is a notable inventor based in Bainbridge Island, Washington. He holds a total of 8 patents, showcasing his significant contributions to the field of chemical engineering. His work primarily focuses on methods related to the oxidation of cyclohexane to adipic acid, which is crucial in the production of nylon and other materials.
Latest Patents
One of his latest patents is titled "Methods of extracting catalyst from a reaction mixture in the oxidation of cyclohexane to adipic acid." This invention relates to controlling the oxidation process by extracting the catalyst from the reaction mixture outside the reaction zone. The method ensures that unreacted cyclohexane, the majority of adipic acid, and the monobasic acid solvent are effectively removed from the reaction product. By adding a protic solvent during the removal process, Dudgeon prevents solids precipitation, allowing for a more efficient reaction. The novel combination solvent, which includes cyclohexanone and water, facilitates the dissolution of the reaction product and the extraction of the catalyst.
Another significant patent is "Methods of separating catalyst in solution from a reaction mixture produced by oxidation of cyclohexane to adipic acid." This invention also focuses on controlling the oxidation process and separating the catalyst from the reaction mixture. By maintaining a single liquid phase and forming two distinct liquid phases, Dudgeon ensures that the catalyst is effectively separated without the risk of solids precipitation.
Career Highlights
Throughout his career, Douglas J Dudgeon has worked with several companies, including Rpc, Inc. and Twenty-First Century Research Corporation. His experience in these organizations has contributed to his expertise in chemical processes and patent development.
Collaborations
Dudgeon has collaborated with notable professionals in his field, including Eustathios Vassiliou and Mark W Dassel. These collaborations have likely enhanced his innovative capabilities and contributed to the success of his patents.
Conclusion
Douglas J Dudgeon is a prominent inventor whose work in the oxidation of cyclohexane to adipic acid has led to significant advancements in chemical engineering. His patents reflect his innovative approach to solving complex problems in the industry.